Material, by the sound of it, moved to fro (5)
I believe the answer is:
suede
'material' is the definition.
(suede is a kind of material)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for suede that I've seen before include "Leather with flesh side rubbed to velvety nap" , "Type of leather" , "Undressed kidskin" , "Kid possibly" , "Form of leather" .)